Question

In the introduction, we looked at the human populations of different geographic groups. There are about 1 x 10^9 people in Africa, 4.2 x 10^9 in Asia, 7.4 x 10^8 in Northern America, 3.7 x 10^7 in Oceania, and 6 x 10^8 in Latin America and the Caribbean.

Part A: which regions have populations with 9 as the power?
Part B: Which regions have populations with 8 as the power?
Part C: Which regions have populations with 7 as the power of 10?
Question 2: Now that the regions are grouped in terms of their powers, compare the first factors of their problems.
Part A: Arrange from greatest to least the regions whose populations have 9 as the power.
Part B: Arrange from greatest to least the continents whose populations have 8 as the power.
Question 3: Now that you have order of regions in each group from Question 2, order all the regions by population from greatest to least. Remember to include Oceania, which was not compared in question 2. It's population is 3.7 X 10^7.

Answer 1

for part 6

Explanation:

From question 1, part B, the regions Northern America, Europe, and Latin America and the Caribbean have populations with 8 as the power of 10.

The population of Northern America is 3.5 × 108.

The population of Latin America and the Caribbean is 6 × 108.

The population of Europe is 7.4 × 108.

All three numbers have the same power, so compare their first factors.

The first factor of the population of Northern America is 3.5. The first factor of Latin America is 6. The first factor of the population of Europe is 7.4.

7.4 > 6 > 3.5

7.4 × 108 > 6 × 108 > 3.5 × 108

population of Europe > population of Latin America and the Caribbean > population of Northern America

Answer 2

Part 1

A. Africa, Asia

B. Northren America Latin America and the caribbean

C. Oceania

Part 2

A. Africa, Asia

B. Northren America, Caribean, and Latin America

Question 3

Africa, Asia, Northren America, Caribean, Latin America, Oceania

Explanation: